Riyah is a small town and rural commune located in the Berrechid Province of Morocco's Casablanca-Settat region. It serves as a local administrative and residential area within the province.
According to census data, the population of the commune has grown over the last two decades. In 2004, Riyah had a total population of 7,562 people living in 1,197 households, while the 2014 Moroccan census recorded an increase to 9,373 residents across 1,491 households.